Device for removing carbon



J. `vH. MElNTs DEVICE FOR REMOVING CARBON May 4 192s. 1,583,001

Filed Deo. 31 1924 Patented May 4, 192.6.`

UNITED STATES JOHN H. MEINTS, OF BEATRICE, NEBRASKA.

DEVICE FOR REMOVING CARBON.

Application filled December To all echo/1t t may concern:

. le it known .that l, J'oivrN H. Minn'rs, a citizen of the United States, residing at Beatrice, in the county of VGage and State of Nebraska, have invented certain new and useful lmproven'lents vin Devices for Removing Carbon, of which the following is a specification.

This invention relates to devicesy for removing carbon from internal combustion engines and has as its general object to provide a device which may be conveniently used for this purpose and which will obviate the necessity of resorting to the tedious scraping of the carbon by hand which is the method usually followed.

Another object of the invention is to provide a deviceof the class referred to embodying an abrading element actuated through the medium of a flexible shaft driven from a stationary motor, which will enable the user of the device to conveniently apply the abrading element to the surfaces from which carbon is to be removed, without the necessity of moving the motor from place to place or being' otherwise inconvenienced.

Another object of the invention is to so construct the device that the abrading element may be conveniently removed, when it becomes worn, and a new one substituted therefor.

In the accompanying drawings:

Figure 41 is a perspective view of the device embodying the invention.

Figure 2 is a detail longitudinal sectional view taken substantially on the line 2 2 of Figure 1, looking in the direction indicated by the arrows.

Figure 3 is a similar view on the line 3-3 of Figure 1.

In the drawings, the numeral 1 indicates an electric motor and the numeral 2 the shaft of the motor, and the end of the shaft is rotatably fitted in a sleeve 3 which is eX- teriorly threaded at one end, as indicated by the numeral Lit, the shaft being provided with a shoulder 5 against which one end of the sleeve may abut to prevent longitudinal movement of the sleeve upon the shaft in one direction, and being provided likewise with a circumscribing collar 6 against which the other end of the sleeve may abut to prevent longitudinal displacement in the other direction. The extremity of the shaft is formed with a diametric groove indicated by ai, niet. sei-iai No. 759,132.

the numeral 7 and this grooveaccommodates va diametric tongue 8 formed at the end of a coupling member 9 which is rotatably Amounted in a sleeve' 10 fixed at one end a sheath 11 housing the flexible shaft 12, the end of the shaft being connected to the said coupling member 9 and the sleeve beingV interiorly enlarged atene end to accommodate a shoulder '13 formed` upon the said couplingl member whereby to preventinf'ard movement ofv the member into the sleeve. The sleeve is swaged at its enlarged end as indicated by the numeral 14 whereby to rotatively retain thereon a union 15 which is interiorly threaded as at 16 to fit the threads 4l of the sleeve 3, the parts being in this manner so connected'that while the sleeve 10, the sleeve 3, and the union 15 remain stationary, the shaft 2, coupling member 9, and shaft 12 will freely rotate and rotary motion is thus communicated to the flexible shaft from the motor shaft.

Fixed to the other end of the sheath 11 is a sleeve 17 which is interiorly enlarged at its outer end to provide a shoulder 18 against which seats a collar 19 formed upon a coupling member 2O corresponding to the member 9 previously described, the =cou` Y pling member 2O having connected to it the other end of the flexible shaft 12. The outer end of the coupling member 20 is provided with a diametric tongue 21 which fits in a diametric groove'22 formed in one end of a shaft 23 rotatably mounted in a sleeve 211 connected to the end of the sleeve l17 by a coupling 25 threaded onto' the end of the said sleeve 24C and swiveled to the outer end of the sleeve 17, as shown in Figure 2 of the drawings. The outer end of the shaft 23 is threaded as indicated by the numeral 26 and a nut 27 is threaded onto this endl of the shaft and is adjusted to nearly abut the i outer end ofthesleeve 24.

vThe numeral 28 indicates in general .the abrading element of the device and the same comprises an annular head 29, the opening of which is of greater diameter than the shaft 26, tufts of wire bristles 30 being secured at their inner ends in the channel of the head, as shown in Figure 2. lVashers 31 and 32 are disposed against the opposite sides of the head 29, the washer 31 engaging against the nut 27, and a nut 33 being threaded onto the end of the shaft 23 and tightened to bear against the other washer 32, whereby to clamp the head 29 between the washers and 82 and thus Secure the head in place and for rotation with the shaft 23.

In the use of the device, the flexible shaft is grasped by the sleeves 17 and 2li and the rotary abrading element 28 is applied peripherally to the surfaces from Which carbon is to be removed, and it will be evident that `diie to the employment of a flexible shaft to transmit motion to the abrading element, the carbon may be removed from all the parte et the engine which are encrusted therewith, rapidly and electually, the flexivbilit of the motion transmitting means )ermitting of free use of the abrading element. Having thus described the invention, what I claim is:

ln a device el' the character described, a sleeve formed with a bore having an enlarged rear end 'portion 'forming an annular seat, a rotatable shaft extending through the bore of said sleeve and having its rear end portion provided Witlran abutment Seated in said seat to prevent forward `sliding of the shaft, the rear end of said sha-"ft being adapted for engagement with drive means and the forward end portion of the shaft being threaded and extending from said sleeve, a nut screwed upon the extended forward end portion oi said sha-tt to engage the forward end oit the sleeve and prevent rear-- Ward sliding ot said shaft, a cleaning element litted upon said shaft against said nut, and a nut screwed upon the outer end portion oit' said shaft and engaging said cleaning element to clamp the same against the first not for turning with the shaft.

In testimony whereoli aix my signature Joint i-i. Mnnrrs. l[il a] 

